Cody'sLab it not that we want to see that exactly. but a thought a normal test tube would not hold the pressure right would be cheaper why not make a smaller tube the same way then rather than cover in sand film it turning into co2 then building pressure and either exploding or turning into liquid then you could shoot it with a bb or something from a safe distance...

What exactly do you think would happen? Would it resemble a prince Rupert drop since there is a lot of internal pressure? Also, why not try to reproduce this and dissolve some hydrogen into the gas? Attach a nozzle and you have a hydrogen fuel. :) Isn't that the current hydrogen fuel limitation?

Cody, I would say keep your first one as a 'keep sake'. If you really want to make one go boom, you can do better than a little tube! :D Keep up the great work man, this is one of my new favorites.

Or just reheat the end of the tube. Either the pressure is enough to blow the top off and spatter hot glass everywhere, or the gas expands the top until equilibrium is reached and you're left with an odd shaped glass wand.

i was pretty sure u would smash it at the end. Its not like you cant make a new one, hehehe.

I came down here looking for this. Thank you kind sir

Hes not exactly wrong.......what's cardboard made out of?? Wood pulp. Lol

@@protectoroffaith exactly why i didn't comment. Well...and the fact that the video is three years old as of now. Though, this comment makes it irrelevant in a way.

RedTriangle53 one of these times, all of y’all won’t be joking when he actually gets seriously hurt or even killed...

@@EpicDoggiez in the name of SCIENCE!!!!!!

LOL

EpicDoggiez id still be joking

@@rickyrick5586 spray bottles of silver nitrate... give them black face for 8 weeks..then their own side will kill them...lol

At least you were smart enough to recognize the problem you'd created and take some caution. I'm kinda impressed honestly, especially considering similar stories I've heard.

Hobo Sullivan lol wut

@DikoMan if you have an unstable handgranate in your hands cheking the temperature isnt your highest priority

Have the sink survived?

Did the sink break?

ReabowRotors Or wooden box...

lol

ReabowRotors 1.40 thats one nice wooden box

Bart Meijer Well, the cellulose part is there, I guess... ;P

Get the water out of the town well with that.

YUSSS!

Wouldn't be too exciting. The glass would shatter ofc but the liquid would just evaporate into invisible CO2.

112BALAGE112 but the 72 atm pressure means it will explode very violently; I want to see this too.

The CO2 would actually freeze solid again. A sudden drop in pressure causes a drastic decrease in thermal energy. Some of it would become gas and take energy away leaving pieces of solid CO2.

Maybe with some glove material taped to it to see it it would have helped.

aRe yOu A pSyChIaTriSt? I do that too haha

*says “bucket” and “wooden box” to the same carboard box

0:40 "bucket" 1:42 "wooden box"

No I do never do it as should I be about to, my other selves always help me out...

And really, who isn't thinking about cake at random times throughout the day?

Unless there's a cyanide spill, then only Cody would survive.

mercury

Daan Wilmer This guy gets it.

Muzik Bike - Geometry Dash and stuff Wrong. This nerd wouldn't survive a day. Being book smart isn't real knowledge.

He has quite a lot of real knowledge.

Mr Nobody your English is suck not is good.

I'm not sure what you're trying to prove here, but indeed my English if far from perfect. But I'm French and it's not my native language, so I guess it's kind of understandable, right ?

+Mr Nobody There are a couple small grammar mistakes, and you misspelled "gas". Nothing major, and it's easy to understand. At a quick glance you can't tell that your native language isn't English.

It's all wrong, almost incomprehensible.

+Sam C I can read it just fine, I don't get why you don't understand it

George Martin camera would definetly break

Lenz Visser Visser they would put a panel between the camera and the tube

i get nervous putting it under more then 30 psi. ive seen pieces implode under just 15 psi of vac. this is just stupid.

Put the tube on a hot plate to heat it up rather than hitting it with a hammer,

@@thedoctor2102 hair dryer...or heat lamp..you dont want to touch it to anything, you dont want a point of heat or cold that can shock it. normally wouldnt matter,,but this thing is on the edge of exploding. its like nitroglycerin

Except for the 500'C bit. Park a solar sail over Venus for 20 years. Ship the Dry Ice to Mars Profit!!

Kye W i would like to see that too. with so much pressure its got to be quite a big bang!

^This. I would like to know just how dangerous it is to handle / potential damage to look out for. It would be a good way to determine how much safety gear is enough. Plus, explosions. I mean you know you want to....

I used to do that with small glass coke bottles and chlorine. Had an old quarry nearby that had a nice big bolder in the bottom next to the high wall. Id hide behind it and lob my glass grenades out into the open and the glass fragments would hit the wall behind me and shatter. I wanted to try experimenting to see how powerful the explosion were but I had to stop due to the massive blasts drawing attention to my activities. The glass flew over 50 meters easily. The gloves Cody was wearing are completely useless and if he wants to experiment, try exploding one of those tubes in a glove and see how it fairs.

Use a styrofoam box, paint it black inside. Place a holder of any type in the box to hold the tube. Place a thick tempered glass over the box, film the explosion from above the glass. After the explosion, focus on the shrapnel found in the box, and the holes that they created in the walls of the box, how large and deep are they. The black surface and white mass of styrofoam would make the result very easy to observe!

Did you commission that avatar for yourself? Or is it from someone else? :O

Borosilicate glass is used for that exact reason - it expands and contracts very little with temperature, so it is unlikely to shatter upon thermal shock.

SonOfFurzehatt Thanks for the explanation.

+SonOfFurzehatt Yeah, it sounds weird, but Glass may be one of the greatest things 'invented' by humans.

Glass is discovered. Glass making technologies invented.

Borosilicate is still prone to crack under thermal shock though. For high temperature quenching (for instance 1000 dC -> -196 dC), quartz glass is preferred to an almost zero coefficient of thermal expansion

No problem! its one of my favorite videos on KZfaq! I've had a few tubes burst, I think the bursting pressure of thees is 1300-1600psi fortunately they contain only about 5ml of gas so the explosion isn't that bad, I had one go off in my hand and it hurt but didn't blow a finger off or anything. I've been learning quite a lot about the compressibility of super critical gasses and I think I'll make another video about that and blowing one up on high speed. :)

I'm wondering if it's possible introduce a non-reactive gas into the tube with dry ice before sealing. Something that adds contrast to make it easier to observe the fluid dynamics.

Cody'sLab you said wooden box haha

it may atakat any time so we must DEAL with it.

VAT THE FAK

Titan-Eren It is very dangerous we must deal with it

Do you play Terraria?

Who needs gods when you have science? :)

A. Lampman I thought of the same thing.

Bait.

+Bruhcoli, without humans there is no science, god is irrelevant here :P.

Umer Ahmad fff

same

Umer Ahmad Oh that's crazy. I don't know how many subs he had when I joined but it was when nighthawkinlight mentioned cody

I've been here since 80k subs. It's awesome to see him climbing up there!

Yeah, he's gained most of his subs within the last year or so. The first video I ever watched of his was him opening a lock with nitro (NG). I have no idea when that was uploaded, but started watching his videos on a regular basis when he started doing a lot of beekeeping stuff. So glad you've made it this far Cody. These subs will help you to keep affording interesting things to provide us with some awesome demonstrations.

445supermag that is actually brilliant

Lmao watched him break that shit in his hand and you overreacting... comical really.....bih.....

AWSMDEWD Why is it not a bucket? And how is it not wooden?

Prove it

Well it's definitely wood.... it has cellulose... and it's also definitely a bucket, it's... a container!

He is extremely nervous at the moment of just creating liquid CO2 cut him some slack.

Ahahaha silly goose

This is Cody, he drinks cyanide...

Cuts will heal, blindness wont, and I dont mind getting cut all that much.

This guy handles bees without gloves or masks... Sorry but a couple hundred of those stings and trust me you wont care about a cut or 5. They are nothing compared to what he has dealt with. If it was to break it would start at the top were it is weakest and he keeps it from his face as well. LoL..... ive seen WAY more dangerous stuff that everyday parents let people do because they don't understand what they are doing.

cmsjr123 I just don't see the comparison between bees and high velocity shards of glass flying at my jugular. Cuts are one thing, punctured veins are another. There is no way to know where the glass could break, there could be imperfections anywhere, but that is a moot point.The amount of pressure in there could send the glass at very high speeds. I would just rather not be picking small pieces of glass out my face and neck if I had the option, that is all.

the irony is cody is probably the safer of the youtube chemists. the backyard scientist makes me cringes when i see him using hot or highly corrosive material, splaching it around his garden in short and a hawain shirt. i feal the minimum safety is at least coton trousers.

Mason S It's a cellulose object...?

Bart Meijer SCIENCE! ^___^

Mason S At one point it was a bucket, I'm sure with the impending thoughts of extreme high pressures in a glass cylinder, Cody can be forgiven.

When is contained dry-ice, the bucket was rectangular and brown, later when filled with water it was cylindrical and white. That's what I call a phase-change :)

actually it may be able to mix with the gas! Thiss is something I will have to try.

yey another video soon then :D

Cody'sLab You should try with methylene blue!

There's a thumbs up just waiting for that video dude. =D

CO2 is an organic solvent, right? Are there organic compounds that change color when dissolved? It would be cool to watch that happen.

OB-One get out

OB-One, ignore Giovanni, he's just being super-critical about your comment.

Ba-dum-tss

instantrimshot.com/classic/

posysajrazdwatrzy he was probably scared of it exploding...

twoja stara, don't you just hate it when boxxes explode?

Eric Fixalot hate when it happen.

+Peter S I hope you're being sarcastic, Cody showed us his blood tests proving he doens't have heavy metal poisoning.

Zabuza Momochi its also not wood

RocksDa RS it is? Papers r made out of wood

Sanz but the real question is if wood is made out of paper

RocksDa RS no wood is made out two trees having sex.

Sanz mommy-tree, daddy-tree, were do baby-trees come from? well son . . .

Don't mock the Genius when he his brain is doing 10000000 things at once and trying not to get blown up by a glass vase while talking to a camera.

That's clearly a cardboard box...

No, you're just dumb. It's obviously a cardboard bucket

well... wood-> cardboard, same material, so i guess he's not wrong?

wood pulp equals cardboard equals wooden box

When substarndard equipment is all you have, its what you get good at using.

I was impressed the cutters worked as well as they did to seal it- I was thinking hmm is that really the tool for the job? Yep. Nicely done Cody! XD

You're on my Emergency Engineer team :)

Tin-snips become crimpers when used with hot glass. lol

No risk, no fun :-D

Teachers could make videos like this one on their own and show it in class to avoid the danger. Most teachers are just lazy assholes who couldn't care less about being interesting.

What did you actually learn from this ? If you're not interested in actually understanding what happens and how and why it happens, it will be a boring subject for you. Here, you're not excited by "learning" since you're not learning anything whatsoever, or maybie one or two very basic pieces of information. You're just watching someone else learn a lot by performing experiments himself, and you enjoy the cool stuff that happens along the way. But quit lying to yourself about learning anything on videos like these. This kind of experiment is certainly a great teaching tool if accompanied by actual learning about what happens and how to describe it in exact physical terms, with models, etc.... but apart from that it's just a cool video that gets all it's dimensions when you know something of in this case fluid dynamics etc...

I wish Cody was active on youtube when I was in school. I got good grades in everything BUT "physics" (Fysik in Swedish). Now i'm hooked on "how does it work, why does it do that".. STAY IN SCHOOL KIDS!

I'm not sure I would go that far with teachers as being lazy. They may have all chosen to be teachers for different reasons. Many probably eventually burn out after doing it for so long and being run down by the average student (i.e. not interested, goofing off, and only there because they had to be). Kind of hard to continuously be motivated when you are always getting little, negative, or no feedback. No, I'm not a teacher, just reflecting on the ones I've had both good and bad and my observations over the years. Long after all my education from of K-12 and college, I still remember all the ones who were influential and those who were not.

Lewis Massie if he will just keep it in the freezer, it SHOULD be fine right? As long as he keeps the temperature changing down to 'freezing' gradual, the glass shouldn't shatter from thermal shock, and the CO2 would be at lower pressure... Or everything I have been taught is a lie, the world is a dodecahedron, and the moon exploded 10 years ago, and the moon landings were as secret experiment to build a 500 Megaton nuclear Fusion weapon in the Moon's deep interior, actually FUNDED by the Soviets. If the latter streak is true, then I need to get a new textbook, and dye my hair the brightest neon yellow I can find

Chadwick Posey Depending on it's form, Uranium is quite safe. It's not the horrible death-trap you think it is. Just don't go ingesting it, because I believe that can cause problems.

Uranium is quite safe.

reese fobes Yeah, and I have the world's best fire retardant, That doesn't mean i'm gonna light myself on fire to prove it.

Store it in liquid nitrogen... you'd actually create a vacuum in there above the dry ice snow...

If only transparent aluminum was a real thing.

en.wikipedia.org/wiki/Aluminium_oxynitride

...No....ALON is aluminum 'OXIDE'....not a metal.....

All we need is Mr. Scott to type really fast on an old Apple computer and boom: transparent aluminum formula. "Captain! There be CO2 Whales in here!!"

(That can be at normal atmospheri pressure)

No, there is a gap about 2 orders of magnitude wide between gases and liquids.

Tungsten hexaflouride is the most dense gas at STP - 1.3 g/l. Liquid hydrogen is the least dense liquid (I think) at STP - 71 g/l. So no, we won't see liquid floating on gas any time soon :-(.

Ok so I'm sure its possible, but difficult... I'm looking at a table of critical densities and it seems CO2 is the highest (of common gasses at reasonable temperatures) but its still only .46g/cm^3 perhaps if I doubled the pressure I could push it up to the .8g/cm needed to float NaK.

So... Compressibility factor of supercriticial CO2 is lower than I first thought. I would need to at least quintuple the pressure...

Because things change ))

I noticed the same thing, lol.

Technically speaking card board is made from trees so it could be considered a wooden box.

Carbo foam extrusion

Povl Kvols I agree

I plan to film it tomorrow and post it monday-ish.

Shoot it with a 22cal ;)

Oh.. nevermind, it's wooden cardboard.

James Neace lol that's exactly what I thought too... haha silly Cody, that's a box not a bucket!

its not a bucket, its a wood box obviously.

yes

Loyteg That's a very informative reply, thanks.

Ameto I think it's in braile.

Oxygen probably. He is probably using magnets underneath to create such effect. Nitrogen is not diamagnetic enough to do so, oxygen however is.

nice

mpcabete last time i read someone say shads instead of shards was in boston!

Glass is surprisingly strong. Flint glass is usually hardened like that, not sure about borosilicate but this wasn't tempered.

Cody'sLab good boro glass is designed to handle the higher heats. and is resistant to physical shock.

its not tempering that makes it strong, the boron gives it a lower expansion coefficient making it less susceptible to generating mechanical stresses in the glass.

Snocrash Holy fuck! It's you! I get so excited when I see A t yter I like comment on a another yter I like's vid :D

You guys are all correct. :) Only when you melt and form the glass you are putting stress into it. In a perfect world, and if it was a pipe or something, you would anneal it in a kiln to relieve that stress. If you have access to a polarizing filter(s) you can see the sress lines in glass. You can still thermal-shock borosilicate. It's just better at it than soft glass.

Rofl. Was thinking the same thing! xD

I knew they were multi-purpose but I didn't know cardboard boxes were also multi-personality

cardboard is made out of wood so he ain't wrong ;)

Paragon643 and humans are water because we are 60% water.

Yeah and a stack of printer paper is also just a stack of wood

He also called it a bucket @:42.

Cardboard is derived from trees. Cardboard boxes are wooden 🤔

What a scientist comedy...,,😁

And this is liqu.. BANG

Dropping a match in liquid oxygen looks awesome

I've always thought that the rough surface would make it weaker but that would be a lot easier.

Cody'sLab Cody, Can I suggest an idea for a video? there is this dotted image of red and blue dots and on the phone, if yoi scroll fast, you see all purple dots. I was wondering that if the phone pixels itself mixes the colors or will your eyes mix them. so I was wondering if you can do a slowmotion of this.

Cody'sLab Cody, Can I suggest an idea for a video? there is this dotted image of red and blue dots and on the phone, if yoi scroll fast, you see all purple dots. I was wondering that if the phone pixels itself mixes the colors or will your eyes mix them. so I was wondering if you can do a slowmotion of this.

I'd be nervous about it failing under the rapid temperature change, but maybe not!